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If $+$ stands for division; $\times$ stands for addition; $-$ stands for multiplication; $\div$ stands for subtraction, which of the following is correct ?

1. $15 \div 5 \times 2 – 6 + 3 = 28$
2. $15 \times 5 + 2 – 6 \div 3 = 56.5$
3. $15 + 5 – 2 \div 6 \times 3 = 3$
4. $15 – 5 + 2 \times 6 \div 3 = 41$

1. $1$
2. $2$
3. $3$
4. $4$

1